Cell towers in Gennevilliers (Hauts-de-Seine)

1 bridge or viaduct and 33 buildings, 8 pylons and 1 silo carry the commune's antennas.

Place names on the register include 11 RTE du Port Charbonnier, 4 Avenue des Louvresses, 11 RTE Principale du Port, 1/3 rue Amboise Croizat, 115 avenue des Grésillons and Route de la Seine.

11 systems were switched on in the past 12 months. ANFR has approved 2 new sites that are not live yet, plus additions on 10 existing masts. New: Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 25 Boulevard Beaumarchais and Free Mobile (4G and 5G, including 5G at 3.5 GHz) at 53 Rue du Fossé Blanc. 35 Bouygues Telecom 5G transmitters are listed as technically operational — installed, but not yet declared commercially in service.

2013 was the busiest year, with 78 new systems, most of them 4G. Local 5G started with Bouygues Telecom in November 2020; SFR followed in December 2020, Free Mobile followed in December 2020. The oldest transmitter still listed here goes back to 1994.

33 of the 43 masts are rooftop-mounted. The tallest support is 46 m at 115 avenue des Grésillons (building). The median height of measured supports is 28 m.

Of the 43 masts in the commune, only one mast carries all four networks, and Bouygues Telecom is the only carrier on 16 masts.

3.5 GHz 5G is declared by Bouygues Telecom on 16 of its 21 masts, Free Mobile on all 14 masts, SFR on 12 of its 13 masts and Orange on 11 of its 12 masts. 95% of the town's masts carry 5G, more than across Hauts-de-Seine towns with five or more masts (82%).

Nearby, Villeneuve-la-Garenne (1.3 km to the north-east) has only 17 masts.

By mast count, Gennevilliers is 9th of the 36 Hauts-de-Seine towns that have five or more. With 43 masts for 50,979 residents, or 8 per 10,000, it has more masts per inhabitant than the median for those towns (6).

At 12 km² with 50,979 residents, the commune is dense enough that most antennas sit on rooftops rather than pylons. It is part of the Métropole du Grand Paris intercommunal grouping.

Source: operator declarations to ANFR, as of October 2026. Projects that are only approved are left out of the totals.